The Way stipulates axioms of Power - that Sumou is a Trial of Power, that you must exert yourself to the maximum no matter what...

The practice of Sumou then tests your Power and Strength as a Man, whether you can live up to the Ideals, or only theoretize about them.

Because Sumou in its embodiment - Keiko is so brutal and hard, it brings you all the way to the bottom of your weaknesses. The Meaning of the Way then is to aim for the highest Ideals no matter what. No ducking aside, exerting the maximum Power no matter what and where...